527
CDUS46 KMTR 280101
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
501 PM PST SAT DEC 27 2025
...............................
..THE NAPA AIRPORT CLIMATE SUMMARY FOR DECEMBER 27 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 55 3:30 PM 67 1999 56 -1 62
MINIMUM 36 8:07 AM 25 2015 38 -2 53
AVERAGE 46 47 -1 58
PRECIPITATION (IN)
TODAY T 0.46
MONTH TO DATE 3.43 3.27
SINCE OCT 1 6.89 7.53
SINCE JAN 1 15.21 21.37
DEGREE DAYS
HEATING
TODAY 19 7
MONTH TO DATE 421 326
SINCE DEC 1 421 326
SINCE JUL 1 896 866
COOLING
TODAY 0 0
MONTH TO DATE 0 0
SINCE DEC 1 0 0
SINCE JAN 1 211 444
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 3.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 72 3:00 PM
AVERAGE 86
......................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 64 1999
MINIMUM TEMPERATURE (F) 38 24 2013
SUNRISE AND SUNSET
DECEMBER 27 2025......SUNRISE 7:25 AM PST SUNSET 4:56 PM PST
DECEMBER 28 2025......SUNRISE 7:25 AM PST SUNSET 4:57 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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